
Tellum is a systems integrator
for facade and glazing contractors.
Business systems — not facade systems.
Your projects, drawings, procurement and cash live in different places — and the record of what you installed lives in lever-arch files.
We join what you already run into one live picture.
Nothing gets replaced.
- LogiKal
- Sage
- Drawing register
- Email & WhatsApp
- +156 systems →
- Projects — margin live
- Record — installed, with proof
- Cash — month-end builds itself
- LogiKal
- Sage
- Drawing register
- Email & WhatsApp
- +156 systems →
- Projects — margin live
- Record — installed, with proof
- Cash — month-end builds itself
The systems your facade and glazing business already runs on.
If it's on this list, we've connected it before. If it isn't, we probably still have — .
You're not unusual. This is what running a contractor at this stage looks like.
“Same project, three systems, three different numbers. I spend Friday afternoons working out which one is right.”
That's plumbing, not people. We fix the plumbing.
“The client asked what exactly is on elevation B. It took us three weeks to answer.”
If the answer lives in lever-arch files, every question costs a week. We attach the product and its certificate to the panel the day it goes in.
“Month-end takes the FD a week and one spreadsheet nobody else understands.”
Month-end shouldn't be a build project. It should already be there.
Wherever you are with your systems, there's a version of this for you.
You're picking or replacing something.
We help you choose the tools that fit how you actually work — not the ones the salesman liked. Shortlist, trial, decision. Then we set them up properly.
You already have the tools. They don't talk, or they don't do enough.
We customise, connect and extend what you run: integrations, missing reports, automations, the layer on top. Then we keep it working and growing with you.
You have the systems. People use half of them.
We teach your team to run the tools you already pay for — properly, and with the automations that make them worth the money.
Most clients start in the middle. Some start with training and never need the rest.
Tools get you level. The layer gets you ahead.
Choosing, connecting and training put the right tools in place — the same tools your competitor can buy. The Tellum Operating Layer is ours: it sits on top of what you run and bends to how you work. A new metric lands in days, a new workflow in a week or two. Nothing gets replaced.
One live picture. Three things on it.
Every project, cost-to-date against budget — design hours, glass and aluminium commitments, install gangs — with long-lead orders against the date the programme needs them, drawing approvals by status, and variations where you can see them.
Nothing gets replaced. Your ERP stays your ERP. We add the layer on top.
Small first step. No migration. Nobody retrains.
We sign an NDA, then walk you through what we'd connect and how. A demo, not a sales call.
We pick the right technical approach and build a working prototype on your numbers — free, typically within 48 hours. Static data at this stage; the live connection comes with the build. You decide if it's worth going further.
Implementation, customisation, the connecting layer, training — the actual engagement begins. Your systems stay where they are; your team keeps working the way it works.
Before and after
Examples of what we can help you with — real engagements, anonymised, names and some details changed.
6 of 6 engagements
About to buy an ERP they'd have spent a year fighting.
Sage 50, LogiKal for pricing, and a dozen spreadsheets in between.
One project tracker from survey to install, Sage kept for the books, LogiKal left doing what it's good at — live in six weeks.
Project controls lived in an eight-tab workbook next to the ERP.
NetSuite for finance, Excel for procurement, cost-to-complete, drawing status and variations.
One portal on top of NetSuite — cost-to-complete and commitments per project, long-leads against programme, variations captured the day they're instructed.
Every building needed an evidence pack; every pack was a month of assembly.
Site records in Procore, certificates in folders, funder reporting built by hand per building.
One layer: progress, products and certificates per building and per elevation, evidence packs and funder reports assembled from the systems — in clicks.
Nobody could see surveys turning into quotes and quotes turning into installs.
Money in QuickBooks, pipeline in HubSpot, the install schedule in a spreadsheet.
One weekly picture: quote conversion, install teams booked against capacity, cash by client.
Install progress was reported by feel; QA lived in three apps.
Panels counted from photos, water-test results in one tool, snags in another, workforce in Excel.
One board: panels installed per elevation against programme, QA and water tests per zone, snag closure by package — with safety and workforce reporting alongside.
Three acquisitions, three ways of running a project, entities that didn't line up.
Consolidating P&L by division took most of the month.
A consolidation layer on Intacct — common project structure, month-end across all entities in days.
Want to see the layer itself? Same numbers, three front-ends — inside NetSuite, as a modern portal, as Power Apps.

You're probably here the way most of our clients arrive — a colleague passed our name on, or you got a note from me. Either way, good to meet you. If the page doesn't answer your question, ask me directly — I read every reply myself.
Questions we get asked
The stack we see most often in cladding & facades: LogiKal, Procore, Bluebeam, PlanRadar, Payapps, Sage — plus Excel, Microsoft 365 and WhatsApp. In total we work with around 160 systems across 21 categories, listed at tellum.works/vendors. If a system has an API, a database or an export, it can be connected.
Pick your first step.
From a free PDF to a working prototype on your own numbers in 48 hours. Pick one — the form below adjusts.